Addition of Dioxane in Electrolyte Promotes (002)-Textured Zinc Growth and Suppressed Side Reactions in Zinc-Ion Batteries

ACS Nano, Год журнала: 2023, Номер 17(4), С. 3765 - 3775

Опубликована: Фев. 8, 2023

The reversibility and cyclability of aqueous zinc-ion batteries (ZIBs) are largely determined by the stabilization Zn anode. Therefore, a stable anode/electrolyte interface capable inhibiting dendrites side reactions is crucial for high-performing ZIBs. In this study, we investigated adsorption 1,4-dioxane (DX) to promote exposure (002) facets prevent dendrite growth. DX appears reside at suppress detrimental reactions. ZIBs with addition demonstrated long-term cycling stability 1000 h in harsh conditions 10 mA cm–2 an ultrahigh cumulative plated capacity 5 Ah shows good average Coulombic efficiency 99.7%. Zn//NH4V4O10 full battery achieves high specific (202 mAh g–1 A g–1) retention (90.6% after 5000 cycles), much better than that pristine ZnSO4 electrolyte. By selectively adjusting Zn2+ deposition rate on crystal adsorbed molecules, work provides promising modulation strategy molecular level anodes can potentially be applied other metal suffering from instability irreversibility.

Язык: Английский

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On Energy Storage Chemistry of Aqueous Zn-Ion Batteries: From Cathode to Anode

Electrochemical Energy Reviews, Год журнала: 2023, Номер 6(1)

Опубликована: Сен. 16, 2023

Язык: Английский

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Critical roles of metal–organic frameworks in improving the Zn anode in aqueous zinc-ion batteries

Chemical Engineering Journal, Год журнала: 2023, Номер 457, С. 141334 - 141334

Опубликована: Янв. 5, 2023

Язык: Английский

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Balancing Interfacial Reactions through Regulating p‐Band Centers by an Indium Tin Oxide Protective Layer for Stable Zn Metal Anodes

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(40)

Опубликована: Авг. 11, 2023

Abstract Metallic zinc (Zn) is considered as one of the most attractive anode materials for post‐lithium metal battery systems owing to high theoretical capacity, low cost, and intrinsic safety. However, Zn dendrites parasitic side reaction impede its application. Herein, we propose a new principle regulating p ‐band center oxide protective coating balance adsorption energy migration barrier effective deposition stripping. Experimental results calculations indicate that benefiting from uniform zincophilic nucleation sites fast transport on indium tin (ITO), highly stable reversible can be achieved. As result, I−Zn symmetrical cell achieves deposition/stripping with an extremely overpotential 9 mV superior lifespan over 4000 h. The Cu/I−Zn asymmetrical exhibits long lifetime cycles average coulombic efficiency 99.9 %. Furthermore, assembled I−Zn/AC full excellent 70000 nearly 100 % capacity retention. This work provides general strategy insight construction efficient protection layer.

Язык: Английский

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Conductive Framework-Stabilized Zn-Metal Anodes for High-Performance Zn-Ion Batteries and Capacitors

Energy Material Advances, Год журнала: 2023, Номер 4

Опубликована: Янв. 1, 2023

Aqueous zinc (Zn)-based energy storage devices possess promising applications for large-scale systems due to the advantage of high safety, low price, and environment-friendliness. However, their development is restricted by dendrite growth hydrogen evolution issues from Zn-metal anode. Herein, a facile stress-pressing method reported constructing grid anode (GZn) with conductive framework. The highly copper (Cu)-mesh framework reduces electrode increases conductivity. Meanwhile, in situ-formed Cu-Zn nano-alloy stabilizes Zn deposition interface. As result, GZn symmetrical cell presents overpotential 49 mV after cycling 1,200 h (0.2 mA∙cm −2 ). In addition, displays its potential application as universal Zn-ion capacitors batteries. An activated carbon||GZn capacitor delivers stable performance 10,000 cycles at 5 A∙g −1 MnO 2 ||GZn batteries exhibit satisfactory cycle stability excellent rate performance. This demonstrates that appears be

Язык: Английский

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Two Birds with One Stone: Green Solvent Enabled High‐Stability and Durable Zn Anode in Both Non‐Aqueous and Aqueous Electrolytes

Advanced Functional Materials, Год журнала: 2024, Номер 34(34)

Опубликована: Март 1, 2024

Abstract Rechargeable zinc batteries are promising choices for eco‐friendly, safe and cost‐effective energy storage solutions. However, their commercial adoption faces challenges such as low Coulombic efficiency (CE) poor reversibility of Zn anodes. To address these issues, a new green electrolyte based on N,N'‐Dimethylpropyleneurea (DMPU) has been developed, affording robust, dendrite‐free anode with over 5000 h cycle stability high average CE 98.49%. in DMPU‐electrolyte significantly outperforms aqueous 67 times longer life, demonstrating excellent stability. Moreover, ultra‐stable cycled 10 000 cycles at 1.0 mA cm −2 showcases reversibility. The Dimethylpropyleneurea‐triflate anion generated solid interphase enables homogeneous rapid 2+ ‐diffusion the electrode interface, leading to structured hexagonal deposit. Furthermore, additive, DMPU stabilizes severe conditions (5.0 10.0 ) along remarkable enhancement (99.12%). This study offers valuable insights into development hybrid organic electrolytes advance battery technology.

Язык: Английский

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A rechargeable, non-aqueous manganese metal battery enabled by electrolyte regulation

Joule, Год журнала: 2024, Номер 8(3), С. 780 - 798

Опубликована: Янв. 31, 2024

Язык: Английский

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Antioxidant Interfaces Enabled by Self‐Deoxidizing and Self‐Dehydrogenating Redox Couple for Reversible Zinc Metal Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(29)

Опубликована: Май 11, 2024

Abstract Parasitic electrolyte reactions and dendrite growth make Zn metal anodes with high utilization rates (ZURs) more inaccessible, holding back the advance of aqueous zinc batteries (AZMBs). Here, sodium isoascorbate (SIA) is introduced to electrolytes as a self‐deoxidizing self‐dehydrogenating additive. Coexisting C 6 H 7 O − /C 5 couple spontaneously captures dissolved oxygen eliminates generated hydrogen by acting redox buffer, which leads creation antioxidant Interfaces due an in situ formed ZnCO 3 ‐dominated solid interphase (SEI). This SEI enables (100) faceted electrode dendrite‐free non‐corrosive plating/stripping, thus yielding Coulombic efficiency 99.7% up 1100 h at mAh cm −2 , well stable cycle sustaining for over 335 under ZUR 85.5%. Full‐cell properties are demonstrated matching poly(3,4‐ethylenedioxythiophene) intercalated vanadium oxide (PEDOT‐V 2 ) cathode, harvests capacity 302 g −1 (at 0.01 A holds 94.2% retention 600 cycles 1 practical conditions (N/P = 4.2 E/C 7.6 µL mg ). These findings provide new solution design industrializing AZMBs.

Язык: Английский

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Enhancing the Kinetics of Zinc Ion Deposition by Catalytic Ion in Polymer Electrolytes for Advanced Zn–MnO₂ Batteries

Advanced Functional Materials, Год журнала: 2022, Номер 32(52)

Опубликована: Окт. 26, 2022

Abstract The practicality of zinc‐ion batteries (ZIBs) is compromise seriously because the mutual restrictions hydrogen evolution, by‐product formation and zincdendrite growth. Herein, anhydrous gel polymer electrolytes (GPEs) with catalytic ions in situdomain‐constrained zinc are designed. Innovatively, copper confined network structure for accelerating deposition migration kinetics ions. Not only does this GPEs exhibit strong mechanicaland thermal properties, but it also presents a high ionic conductivity (24.32 mS cm −1 ) ion transference number (0.42). Consequently, capable stable cycling symmetrical Zn cells at 1 mA −2 acumulative capacity 1000 mAh maintaines discharge specific 124.6 g after long‐term cycles Zn‐MnO 2 battery (ZMB) C. synergistic strategy composite opens new opportunities promising pathway to facilitate large‐scale application ZIBs hydrogel electrolytes.

Язык: Английский

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Continuous Amorphous Metal–Organic Frameworks Layer Boosts the Performance of Metal Anodes

ACS Nano, Год журнала: 2023, Номер 17(19), С. 19275 - 19287

Опубликована: Окт. 2, 2023

Employing metal anodes can greatly increase the volumetric/gravimetric energy density versus a conventional ion-insertion anode. However, are plagued by dendrites, corrosion, and interfacial side reaction issues. Herein, continuous flexible amorphous MOF layer was successfully synthesized used as protective on anodes. Compared with crystalline layer, inhibit dendrite growth at grain boundary eliminate ion migration near boundary, showing high adhesion large number (tZn2+ = 0.75). In addition, effectively solve several key challenges, e.g., corrosion of zinc anode, hydrogen evolution reaction, surface. The prepared Zn anode (A-MOF) exhibited an ultralong cycling life (around one year, more than 7900 h) low overpotential (<40 mV), which is 12 times higher that layer. Even 10 mA cm-2, it still showed stability for 5500 cycles (1200 h). enhanced performance realized full cells paired MnO2 cathode. symmetrical battery Zn@A-ZIF-8 good cyclability under different bending angles (0°, 90°, 180°). More importantly, various substrates were coated compact A-ZIF-8. A-ZIF-8 obviously improve other anodes, including those Mg Al. These results not only demonstrate potential MOF-decorated AZIBs but also propose type

Язык: Английский

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